Gas-producer.



N0. 66!,445. Patented Nov. 6, I900.

E. J. DUFF.

GAS PRODUCER;

(Application filed Feb. 16, 1900.)

2 Sheets-Sheei I.

(No Modal.)

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No. GUAM. Patented Nov. 6, I900. E. J. DUFF.

GAS PRODUCER.

(Application filed Feb. 16, 1900.)

(No Model.)

EDWARD JAMES DUFF, OF LIVERPOOL, ENGLAND, ASSIGNOR. OF ONE-HALF TO THEUNITED ALKALI COMPANY, LIMITED, OF SAME PLACE.

GAS -PRODUCER.

SPECIFICATION forming part of Letters Patent No. 661,445, dated November6, 1900.

Application filed February 16, 1900. Serial No. 5,519. (No model.)

To ctZZ whom it may concern: are held in position and the space betweenBe it known that I, EDWARD JAMES DUFF, them covered by a headpiece E,which forms a subject of the Queen of Great Britain and the uppermostportion of theinverted\l grate. Ireland, and a resident of 80 Jamesstreet, This headpiece E also serves to limit the Liverpool, in thecounty of Lancaster, Engmovement when the grids are struck. The land,have invented certain new and useful lower edges of the grids each restin a groove Improvements in or Connected with Gas-Pro- F, so as to allowof the necessary movement. ducers,(for which British Letters Patent haveThese grooves are formed in the upper edge been applied for,No. 18,581,dated September of solid division-pieces F which prevent the 1o 14,1899,) which invention is fully set forth air Whichisintrod uced beneaththe grate from in the following specification. getting up between thecharge and the walls This invention relates to the grates of gasof thefurnace and also form water-wells II, producing apparatus, and moreparticularly into which the spent fuel falls and from which to those ofthe type of gas-producer described it can be removed through theopenings I r 5 in the specification of British Letters Patent Withoutinterrupting the operation of the fur- No. 7,467 of 1893. nace. Thehammer or hammers D is or are In gas-producing, where a considerablepreferably operated by means of a lever G, amount of steam is employed,which is necessecured to the spindle 0, so that blows can be sary whereammonia recovery is desired, given to the tops of the grids on eitherside 2o blockage is liable to occur owing to a tendas desired.

ency of the fine dust from the ashes to cake Having now particularlydescribed and ason the bars of the grate. certained the nature of mysaid invention and This invention provides means whereby in what mannerthe same is to be perfm'med, such blockage can be removed without interI declare that what I claim is 25 fering with the operations going on inthe 1. In a gasproducer, a grate consisting of producer and Without thenecessity for opengrids arranged in inverted-V form, bearings ing theproducer by the removal of manholefor the lower edges of the grids, asupport covers or the like, as hitherto has been necesagainst which theupper edges of the grids sary. The arrangement as hereinafter denormallyrest, a spindle adapted to be oper- 3o scribed also prevents air fromgetting up at ated from outside the furnace, and means the sides of thecharge, so as to reach the such as a projection or hammer on saidspinupper part and consume the gas, and it also dle having freedom ofmovement between the enables the furnace to be worked continuupper endsof the grids and adapted upon roously by withdrawing spent fuel atbottom as tation of the spindle to strike the grids and 8 35 fresh fuelis introduced from above. move them outwardly in opposite directions.

According to this invention a hammer or a 2. In a gas-producer, a grateconsisting of series of hammers is manipulated (which can grids arrangedin inverted-V form, bearings be done by a lever outside the producer) sofor the lower edges of the grids, a support that sufiicient movement isgiven to the bars against which the upper edges of the grids 9o 40 tobreak up and dislodge any caked material. normally rest, a spindleadapted to be oper- The accompanying drawings represent an ated fromoutside the furnace, means such as arrangement in accordance with thisinvena projection or hammer on said spindle hav tion. ing freedom ofmovement between'the upper Figure 1. is a transverse vertical section,ends of the grids and adapted upon rotation 45 and Fig. 2 a longitudinalvertical section. of the spindle to strike the grids and move The bars Aof the grate are connected so as them outwardly in opposite directions,and to form gridsgvhich are inclined to each and a headpiece above thespindle covering the constitute a grate of inverted-V form. The spacebetween the upper ends of the grids. upper edges of the said grids lieagainst the 3. In a gas-producer, upright partitions at [O0 50 hearingB, in which the spindle O, carrying the bottom of thecombustion-chamber, formthe hammer or hammers D, moves, and they ing anair-inlet compartment beneath the grate and water-seal spaces at thesides of said compartment, a grate consisting of grids arranged ininverted-V form over the aircompartment, bearings for the lower edges ofthe grid, a support against which the upper edges of the grids normallyrest, and means operating between the upper ends of the grids and commonto both for moving the same outwardly in opposite directions.

4;. In a gas-producer, upright partitions at the bottom of thecombustion-chamber forming an air-inlet compartment beneath the grateand water-seal spaces at the sides of said compartment, said spacesbeing adapted to receive the spent fuel and being provided with openingsthrough which they are accessible from the exterior of the producer forthe removal of said spent fuel, a grate consisting of grids arranged ininverted-V form over the air-compartment, bearings for the lower edgesof the grid, a support against which the upper edges of the gridsnormally rest, and means operating between the upper ends of the gridand common to both for moving the same outwardly in opposite directions.5. In agas-producer, two upright partitions extending across the bottomof the combustion-chamber and forming an air-inlet compartment beneaththe grate and water-seal spaces at the sides of said compartment, agrate consisting of two grids bearing at their lower edges respectivelyon the upper edges of said partitions and arranged in inverted- V formover the air-compartment, a support against which the upper edges of thegrids normally rest, and means operating between the upper ends of saidgrids and common to both for moving the same outwardly in oppositedirections.

6. In agas-producer, two upright partitions extending across the bottomof the combustion-chamber and forming an air-inlet compartment beneaththe grate and water seal spaces at the sides of said compartment, agrate consisting of two grids bearing at their lower edges respectivelyon the upper edges of said partitions and arranged in inverted- V formover the air-compartment, a support against which the upper edges of thegrids normally rest, a spindle adapted to be operated from outside thefurnace, and means such as a projection or hammer on said spindle havingfreedom of movementbetween the upper ends of the grids and adapted uponrotation of the spindle to strike the grids and move them outwardly inopposite directions.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ED WARD JAMES DUFF.

Witnesses ALFRED PATCHETT, THOMAS SPROAT.

